Boston (BOS) to Dublin (DUB) business class award flights

In business class from Boston (BOS) to Dublin (DUB), the best value is also the fewest miles: 45,000 Atmos points plus $26 on Aer Lingus through Atmos Rewards (checked 3 Nov 2026).

DUB → BOS

Best value right nowPlus fees$25.60Program

Atmos RewardsAirline

Aer LingusDepartingSun, Nov 22

Last checked 2h agoChecked 3 Nov 2026, 06:34 UTC

Which program and airline costs you least

Boston to Dublin in business class: is 45K Atmos points + $25.60 — Aer Lingus through Atmos Rewards.

Every way to book BOS to DUB with miles or points
Airline	Program
Aer LingusBest valueNonstopAtmos Rewards	Atmos Rewards	45K Atmos pointsplus $25.60	$25.60
American AirlinesFewest pointsvia PHLAtmos Rewards	Atmos Rewards	45K Atmos pointsplus $25.60	$25.60
Delta Air LinesNonstopDelta SkyMiles	Delta SkyMiles	125Kplus $5.60	$5.60
British Airwaysvia LHRAtmos Rewards	Atmos Rewards	45K Atmos pointsplus $1,017.60	$1,017.60
Air Francevia CDGAir France-KLM Flying Blue	Air France-KLM Flying BlueStandard fare	700Kplus $354.10	$354.10
KLMvia AMSAir France-KLM Flying Blue	Air France-KLM Flying BlueStandard fare	700Kplus $364.50	$364.50
Seen earlier, not re-checked since
Aer LingusNonstoplast seen 26 Oct, not re-checked sinceBritish Airways Club	British Airways Club	50K AviosFees not quoted, about $26	Not quotedabout $26
British Airwaysvia LHRlast seen 27 Oct, not re-checked sinceBritish Airways Club	British Airways Club	104.5K AviosFees not quoted, about $1,018	Not quotedabout $1,018

Where the space is over the next 60 days

Dashed days are prices last seen more than 3 days ago and not re-checked since.

BOS to DUB in business class: the facts

Over the next 60 days we hold business class seats from Boston to Dublin on 60 of the 60 departure days, through 4 programs. These figures are counted from the seats stored for those dates, not from a price history; the typical day is the median of each day's cheapest seat. Data updated November 3, 2026.

Atmos Rewards
Days with space
32 of 60
Lowest
45,000 Atmos points
Typical day
45,000 Atmos points
Cash on top
$26 to $1,018
British Airways Club
Days with space
21 of 60
Lowest
50,000 Avios
Typical day
50,000 Avios
Cash on top
Not quoted
Delta SkyMiles
Days with space
60 of 60
Lowest
125,000 miles
Typical day
307,500 miles
Cash on top
$6 to $35
Air France-KLM Flying Blue
Days with space
1 of 60
Lowest
700,000 miles
Typical day
700,000 miles
Cash on top
$354

BOS to DUB business class seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Atmos Rewards	32 of 60	45,000 Atmos points	45,000 Atmos points	$26 to $1,018
British Airways Club	21 of 60	50,000 Avios	50,000 Avios	Not quoted
Delta SkyMiles	60 of 60	125,000 miles	307,500 miles	$6 to $35
Air France-KLM Flying Blue	1 of 60	700,000 miles	700,000 miles	$354

Nonstop or with a connection

Nonstop seats on Aer Lingus and Delta Air Lines. With a connection on Air France, American Airlines, British Airways and KLM.

How to book it

Atmos Rewards books on alaskaair.com: sign in there, search BOS to DUB in business class on a date with space, and pay in Atmos points with the cash on top (from $26).
British Airways Club books on avios.com: sign in there, search BOS to DUB in business class on a date with space, and pay in Avios with the cash on top.
Delta SkyMiles books on delta.com: sign in there, search BOS to DUB in business class on a date with space, and pay in miles with the cash on top (from $6).
Air France-KLM Flying Blue books on airfrance.fr: sign in there, search BOS to DUB in business class on a date with space, and pay in miles with the cash on top (from $354).

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